Square D FI36090G 90A 3-Pole 600 V Circuit Breaker

Introducing the Square D FI36090G 90A 3-Pole 600 V Circuit Breaker — a durable protection device designed for three-phase electrical systems. Part Number FI36090G identifies this specific model, which carries a 90 amp current rating and three poles to guard all three phases up to 600 volts.

Why it matters

In three-phase power networks, reliable overcurrent protection is essential to prevent equipment damage and downtime. The FI36090G is built to interrupt current cleanly when faults occur, helping to safeguard motors, drives, and other critical loads in commercial and light-industrial environments.

Key specifications

• Current rating: 90 A
• Poles: 3
• Voltage rating: 600 V
• Part Number: FI36090G

Ideal applications and use cases

Best suited for three-phase circuits in panelboards and electrical distribution where you need robust protection without compromising space. Typical scenarios include protecting motors, conveyors, HVAC components, pumps, and other three-phase equipment in commercial facilities or light-industrial settings.

What sets this Square D breaker apart

• Direct compatibility with standard Square D/SCHNEIDER installations, backed by the brand's long-standing track record in electrical protection.
• Precise 90 A rating for reliable coordination with load requirements while maintaining safe interrupting performance at 600 V maximum.

Installation and maintenance tips

Before installation, verify that your panel and conductor sizing align with a 90 A, 3-pole device rated for 600 V. Follow all local electrical codes and safety guidelines, and ensure proper torque on terminals as specified by the manufacturer. Regularly inspect for signs of wear or overheating around the breaker in the panel.